Question: New students were once referred to as members of a religious group. How many members of that group live in the South American country discovered by Os Lusíadas's country.
Context: Document 1: Eton College: In the past, people at Eton have occasionally been guilty of antisemitism. For a time, new admissions were called 'Jews' by their fellow Collegers. In 1945, the school introduced a nationality statute conditioning entry on the applicant's father being British by birth. The statute was removed after the intervention of Prime Minister Harold Macmillan in the 1960s after it came to the attention of Oxford's Wykeham Professor of Logic, A. J. Ayer, himself Jewish and an Old Etonian, who "suspected a whiff of anti-semitism".
Document 2: Portugal: Portugal spearheaded European exploration of the world and the Age of Discovery. Prince Henry the Navigator, son of King João I, became the main sponsor and patron of this endeavour. During this period, Portugal explored the Atlantic Ocean, discovering several Atlantic archipelagos like the Azores, Madeira, and Cape Verde, explored the African coast, colonized selected areas of Africa, discovered an eastern route to India via the Cape of Good Hope, discovered Brazil, explored the Indian Ocean, established trading routes throughout most of southern Asia, and sent the first direct European maritime trade and diplomatic missions to China and Japan.
Document 3: Os Lusíadas: Written in Homeric fashion, the poem focuses mainly on a fantastical interpretation of the Portuguese voyages of discovery during the 15th and 16th centuries. "Os Lusíadas" is often regarded as Portugal's national epic, much as Virgil's "Aeneid" was for the Ancient Romans, or Homer's "Iliad" and "Odyssey" for the Ancient Greeks. It was written when Camões was an exile in Macau and was first printed in 1572, three years after the author returned from the Indies.
Document 4: Jews: More than half of the Jews live in the Diaspora (see Population table). Currently, the largest Jewish community outside Israel, and either the largest or second-largest Jewish community in the world, is located in the United States, with 5.2 million to 6.4 million Jews by various estimates. Elsewhere in the Americas, there are also large Jewish populations in Canada (315,000), Argentina (180,000-300,000), and Brazil (196,000-600,000), and smaller populations in Mexico, Uruguay, Venezuela, Chile, Colombia and several other countries (see History of the Jews in Latin America). Demographers disagree on whether the United States has a larger Jewish population than Israel, with many maintaining that Israel surpassed the United States in Jewish population during the 2000s, while others maintain that the United States still has the largest Jewish population in the world. Currently, a major national Jewish population survey is planned to ascertain whether or not Israel has overtaken the United States in Jewish population.
Answer: 196,000-600,000
Reasoning steps: Which place is Os Lusíadas in? Answer: Portugal
What South American country did Portugal discover? Answer: Brazil
What were new students once called by others? Answer: 'Jews'
How many 'Jews' live in #2 ? Answer: 196,000-600,000